KXTJ2 Accelerometer 2x2x0.9mm Low-Power Accelerometer FEATURES APPLICATIONS Ultra-small Package - 2x2x0.9mm LGA User-selectable g Range and Output Data Rate 8-bit, 12-bit, and 14-bit Resolution Low Power Consumption Internal voltage regulator User-configurable wake-up function Digital I2C Lead-free Solderability Excellent Temperature Performance High Shock Survivability Factory Programmable Offset and Sensitivity Self-test Function User Interface Power Management Active/Inactive Monitoring Device Orientation Inclination and Tilt Sensing Gesture Recognition Pedometer/Activity Monitoring PRODUCT OVERVIEW The KXTJ2 is one of our smallest tri-axis accelerometers, designed for mobile applications. It offers excellent power performance along with an embedded motion wake-up feature, Fast-mode I2C and up to 14-bit resolution. The KXTJ2 is delivered in a 2 x 2 x 0.9 mm, 12-pin, LGA package with an operating temperature range of -40°C to +85°C. The KXTJ2 sensor offers improved shock, reflow, and temperature performance, and the ASIC has internal voltage regulators that allow operation from 1.8 V to 3.6 V within the specified product performance. FOR Smartphones and Mobile Devices Laptops Gaming and Virtual Reality Health and Fitness KXTJ2 Accelerometer 2x2x0.9mm Low-Power Accelerometer The performance parameters below are programmed and tested at 2.6 volts and T = 25°C. The device can accept supply voltages from 1.8V to 3.6V. Due to internal voltage regulators, there should be minimal change with supply voltage variations. PERFORMANCE SPECIFICATIONS PARAMETERS Range Sensitivity 1 KXTJ2-1009 CONDITION g ±2.0, ±4.0, ±8.0 User-selectable full-scale output range 64, 32, 16 8-bit counts/g 0g Offset vs. Temp Sensitivity vs. Temp Mechanical Resonance 3 Output Data Rate (ODR) 4 Bandwidth (-3dB)5 1024, 512, 256 12-bit 1024 typical 14-bit2 mg/°C 0.2 -40°C to +85°C %/°C ±0.01 (xy) ±0.03 (z) typical -40°C to +85°C Hz 3500 (xy) 1800 (z) typical -3dB Hz 0.781 min; 50 typical; 1600 max 800 RES = 0 ODR/2 RES = 1 % of FS 1.0 typical % of full scale output % 2.0 typical MHz 3.4 max V 2.6 typical 1.8V – 3.6V 135 typical High resolution (RES = 1) 10 typical Low resolution (RES = 0) 2 typical Standby Hz Non-Linearity Cross-axis Sensitivity 2 I C Communication Rate Power Supply Current Consumption UNITS 6 µA ENVIRONMENTAL SPECIFICATIONS PARAMETERS UNITS KXTJ2-1009 CONDITION Operating Temperature °C -40 to 85 Powered Storage Temperature °C -55 to 150 Un-powered Mechanical Shock g 5,000, 0.5 ms 10,000, 0.2 ms Powered or un-powered, halversine ESD V 2,000 Human body model NOTES 1 Resolution and acceleration ranges are user selectable via I2C. 14-bit Resolution is only available for registers 0x06h – 0x0Bh in the 8g Full Power mode. 3 Resonance as defined by the dampened mechanical sensor. 4 User selectable through I2C. 5 User selectable; dependent on ODR and RES. 6 Current varies with Output Data Rate (ODR). 2